Direct-contact type cooling tank with upward refrigerant passage

Details Direct-contact type cooling tank with upward refrigerant passage Direct-contact type cooling tank with upward refrigerant passage

1995-03-21

1996-10-15

Sollecito, John M.

Refrigeration

Processes

Fractionally solidifying a constituent and separating the same

62541, 62389, 62 74, 252 67, C02F 122

Patent

active

055642896

ABSTRACT:
A cooling tank 1 for cooling water 2b by bringing water 2b in direct contact with hardly-water-soluble refrigerant 2c having a larger specific gravity than that of water, which tank 1 has an inside space 3 above water surface in the tank 1 and the pressure P.sub.t of the space 3 is kept below the saturation pressure P.sub.0 of the refrigerant 2c at water freezing point (P.sub.t .ltoreq.P.sub.0). The tank 1 also has a refrigerant extraction hole 6a for extracting gas-phase refrigerant 2c, an outlet 14a for drawing cooled water 2b, and an upward passage 30 for refrigerant extending from the bottom of the tank 1 to the water surface therein, which passage 30 guides ascension of that refrigerant 2c which settles at the tank bottom toward the space 3 above the water surface.

REFERENCES:
patent: 4509344 (1985-04-01), Ludwigsen et al.
patent: 4596120 (1986-06-01), Knodel et al.
patent: 5218828 (1993-06-01), Hino

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